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为了研究水平-摇摆耦合激振作用下层状和竖向非均匀地基波阻板(简称WIB)的三维隔振效果,基于薄层法研究层状介质中波传播问题的高效性和边界元法处理无限域问题的精确性,建立了以薄层法基本解答为格林函数的半解析边界元法。分别对上软下硬和上硬下软层状和竖向非均匀地基中WIB的三维隔振效果进行了分析。研究表明,地基的分层参数和非均匀性对WIB的隔振效果有显著影响,上硬下软地基的隔振效果稍好于上软下硬的情况。
In order to study the three-dimensional vibration isolation effect of horizontal and vertical inhomogeneous ground-based wave barriers (WIB) under the effect of horizontal-roll coupling excitation, the effectiveness of the wave propagation problem in layered media based on the thin- In order to deal with the accuracy of the infinite domain problem, a semi-analytical boundary element method with the basic solution of the thin layer method as Green’s function is established. The effects of three-dimensional vibration isolation of WIB in soft layered and vertically non-uniform ground under soft and hard under hard shell were analyzed respectively. The results show that the layered parameters and inhomogeneity of foundation have a significant effect on the vibration isolation effect of WIB, and the vibration isolation effect of upper and lower soft ground is slightly better than that of upper and lower hard.